Machine for making heels for boots and shoes and the like.



3. G. POOL.

MACHINE FOR MAKING HEELS FOR BOOTS AND SHOES AND THE LIKE.

APPLICATION FILED JULY 22.1916.

Patented Sept. 4, 1917.

7 SHEETSSHEET 2.

J. G. POOL.

MACHINE FOR MAKING HEELS FOR BOOTS AND SHOES AND THE LIKE.

APPLICATION FILED JULY 22.1916.

TSHEETS-SHEET 3.

m m N mww Q N U" m m1 WWN 3 W N mfiN $5M w 1 m .H mvmwN J. G. PUOL.

MACHINE FOR MAKING HEELS FOR BOOTS AND SHOES AND THE LIKE.

APPLICATION FILED JULY 22.1916. 1,23%31 5, Patented Sept. 4, 1917.

7SHEETSSHEET 4.

J. G. POOL.

MACHINE FOR MAKING HEELS FOR BOOTS AND SHOES AND THE LIKE.

APPLICATION FILED JULY 22.1916.

Patented Sept. 4, 1917.

Z SHEETS-SHEET 5.

3. G. POOL. MACHINE FOR MAKING HE ELS FOR BOOTS AND SHOES AND THE LIKE.

APPLICATION FILED JULY 22. 1916- Patented Sept. 4, 191?.

TSHEETS-SHEET 5- I. a. POOL. MACHINE FOR MAKING HEELS FOR BOOTS AND'SHQES AND THE LIKE- APPLICATION FILED JULY 22.1916.

Patented Sept. 4, 1917.

I SHEETSrSHEET 7.

are sienna an JOHN GEORGE POOL, 0F LYNN, MASSACHUSETTS.

MACHINE FOR MAKING HEELS FOR BOOTS AND SHOES AND THE LIKE.

Patented Sept. d, 1911?.

Continuation of application Serial No. 28,465, filed may 15, 1915. This application filed July 22, 1916.

, Serial No. 110,745.

To all whom it may concern:

Be it known that 1, JOHN GEORGE F001,, a citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented a certainnew and useful Improvement in Machines for Making Heels for Boots and $hoes and the like, of which the following is", a full, clear, and exact description.

The object of this invention is to provide an improved machine for making or turning wooden heels for boots and shoes, expeditiously, accurately and economically with the least possible manual labor or supervision on the part of the operative, and in a practically automatic manner.

By the term finished heel as hereinafterused it is to be understood that I do not mean a heel wholly ready to be applied to a boot or shoe, but one that has the outside contour or form properly shaped.

The invention consists of a machine primarily designed for turning wooden heels for boots and shoes, but obviously adaptable for turning other objects of more, or less irregular form, in which a carrier, such as a turntable, supports a jack in which the heel blank is held or secured, and which jack is automatically given such motlons that the blank will be so presented to a cutter that one side will be shaped, the cutting beginning at thebreast portion of the heel and extending thence to the back of the heel, and then the jack will be so turned that the opposite side of the heel will be presented to the cutter, and that side likewise cut from breast to back, as I will proceednow to explain and finally claim.

While the invention is not limited to the use of any particular number of jacks, still .in the interest of economy and quantity of production, a machine having three or more jacks is preferred; three jacks being sufficient to allow the opposite sides of two heels to be presented to the cutter-heads and a new block to be inserted in the third jack simultaneously. However, I' prefer to use ffourjacks as this number allows the spindies to be more easily arranged to be driven by a belt, and it is possible to present one jack to the cutter and to have one side of the blank cut, and then advance that jack through periods to the other cutter and pre sent the reverse side of the blank to that cutter to have that side out and then advance ond cutter, another at an intermediate rest' point and the other at the first cutter, there being simultaneously a jack in operative conjunction with each cutter and another jack ready tolreceive a fresh blank.

A machine embodying four jacks, more or less, but in which each of the jacks has a series of identical motions, is shown in rfiy copending case Serial No. 28,465, filed ay 15, 1915, of which this case is a continuation, and the jacks therein shown form the subject of my copending case Serial No. 61,682, filed November 15, 1915.

The illustration and description of the invention herein are in a large measure reproductions of the corresponding parts in the first-named case above mentioned.

In the accompanying drawings illustrating the invention, in the several figures of which like parts are similarly designated,

the frame of the machine removed, the jacks being in the same positions as in Figs. 1 and 2. Fig. 4 is a right-hand end elevation. Fig. 5 is a left-hand end elevation, showing the turret and its associated parts and some other parts in vertical section. Fig. 6 is a detail in elevation and section showing the means for holding the turret while a blank is being trimmed or turned. Fig. 7 is a vertical section and Fig. 8 is a half top plan View and horizontal section of the turret cage detached. Fig. 9 is an elevation and Fig. 10 is a plan view of the internal gear for rotating the turret. Fig. 11 is a partial side elevation and section illustrating the turret-turning mechanism. Fig. 12 is a deis a perspective view of a jack cam forcooperation with the cutter-head. Fig. 21 is a horizontal section illustrating the jack cam and the coactingpart'of the cutter-.

head. Fig. 22 is a horizontal section showing in elevation, partly broken out, a preliminary cast-off for the cutter-head. Fig. 23 is a perspective view, on a larger scale, of a wooden heel blank to be turned, and Fig. 24 is a perspective view of the turned heel which is one form of the product of the machine of this invention. Fig. 25 is a plan view of the turntable and jacks of a fourjack machine. Fig. 26 is a diagram illustrative of the cycle of motions of one jack.

It is to be understood that the invention is not limited to the precise structure herein shown and that variations are permissible within the principle of the invention, and with this reservation, I will proceed now to explain the principle of the invention as embodied in the machine illustrated in the drawings.

1 is a bed plate upon which the various parts of the machine are erected. 2 are two uprights fixed to the bed plate and connected at top by a cross-piece 3. A vertical sta tionary shaft or spindle 4 is mounted at its bottom in a step 5 on a bracket 6 fixed to the bed-plate and in abracket 7 at its top, said bracket 7 being fixed to the cross-piece 3. To this shaft is fixed a stationary cam 8 (Fig. 12) having the cam-grooves 9 and 10 arranged upon opposite faces of the cam and at different altitudes and each extending half-way around the cam and intersected atdiametrically opposite points by vertically disposed grooves 11 and 12 in which are placed slides 13 and 14 each of which has a transverse groove 15, Figs. 5 and 12, said transverse grooves being located near the upper end of one slide and near the lower end of the other. These slides are connected by links 16 and 17 with a rocklever 01' walking-beam 18 fixed to a shaft 19 which is mounted in the bracket 6 and the bracket 20 fast on the bed-plate, so that as the rock-lever is vibrated one slide will be raised to bring its groove 15 into alinement with the upper cam groove 9 and the other will be lowered to bring its groove into alinement with the lower cam-groove 10, as shown in Fig. 12. The links 16 and 17 are set in sockets 21 and 22 pivotally mounted upon the rock-lever 18, and said links are screwthreaded and engaged by nuts 23 and 24 set in transverse slots 25 and 26 in these sockets 21 and 22, or any other suitable means of adjustment may be used so as to secure variation in effective length of the links in order to properly adjust the slides in their grooves in the cam and thereby insure correct register of their transverse grooves with the cam-grooves in the cam. The nuts 23 and 24may be held in adjusted position by any suitable means, such as spring-dogs or fingers 27 engaging the milled or knurled rims of the nuts. The rock-lever 18 is actuated by an arm 28 fixed on the shaft 19, and adjustably connected by a link 29 with a vibrating crank-arm 30, the adjustment being effected by any suitable means such as a slot and'set screw connection 31. The crank-arm 30 is suspended from a stationary shaft 32 supported in the bracket or stand 33 and-the horizontal bar 34 supported upon the uprights 2, and its lower end is provided with a roller 35 opposite the point of attachment of the link 29, which roller engages a cam-groove 36 in a, rotary cam-disk 37 mounted to turn with the driven shaft 38, which is mounted in the bracket or stand 33 and the bracket or stand 39, and is driven by a worm-wheel 40 engaged by a worm 41 on the driving shaft 42. Power may be applied to the driving shaft 42 in any suitable way, as by pulley 43 and belt 44, theshaft being also supplied with a loose pulley 45 and a belt-shifter 46. As shown, this belt-shifter 46 may be connected with a lever 47 connected by a link 48 with a rock-shaft 49 extending from the back of the machine to the front and provided with an operating lever 50.

Surrounding the cam 8 is a turret-cage 51, having its bottom closed by a plate 52 made fast to the shaft 4 and having a top ring 53 rigidly connected with a plate 54 so that the cage and plate may be turned together.

This conjoint turning of the cage and plate may be effected in any of a variety of ways, and as here shown, these parts are provided with an internally toothed ring 55 fixed to the plate and engaged by a pinion 56 mounted upon the shaft 57 having its bearing in the cam 8 and at its lower end connected by bevel gears 58 with a shaft 59 which is mounted in the brackets or stands 60 and 61 erected on the bedplate 1, said shaft 59 being provided with on the shaft 59, andthere is fixed to the v shaft 58 to turn with it a ratchet disk-or pawl carrier 68 having a pawl 69 which enmacaw proper travel of the toothed segment 63 the gear wheel 52 is turned, the ratchet 67 Will 'be engaged by the pawl 69 and consequently locking-"dog 70 (see Fig. 6) arranged 1n asocket 71 forming part of the stand 60. This locking-dog 70 has an extension 72 which is engaged by a finger 73 which in turn is connected by a link 74 with an arm 7 5 which may be fixed to a shaft 76 mounted in a bracket 77, the other end of the shaft 76 having attached to it a locking cam lever 78 which is engaged by a cam 79 on the disk 66 by which the link which actuates the toothed segment 63 is actuated. The cam 79 serves to throw back the cam-lever 78, as shown in dotted lines in Fig. 6, so as to withdraw the locking-dog from the plate 54 at a time when the gearing in its motion should start to rotate the plate, and when this period of rotation is ended the cam 79 passes beyond the cam-lever and allows said cam-lever to drop toward the lower surface of the disk, thus releasing the arm 75, link 74 and finger 73 and permitting the spring to act upon the dog to throw it into locking relation to theplate.

The cage 51 is provided with suitable slideways 80 in which are mounted the slide blocks 81 each of which has a roller 82 which is normally engaged in one or the other of the cam-grooves 9 and 10.. These blocks 81 have secured to them the vertically arranged toothed rack-bars 83 which extend up through openings 84 in the top of the plate 53 of the cage and the rim of the gear 55, and these bars engage pinions 85 on shafts 86 horizontally mounted in the plate 54. As the lcage and plate are revolved about the can! 8, the roller 82 on the block 81 engages the slot in the slide 13 when this slide is at its highest elevation and is carried downward by this slide through the operation of the walking-beam 18 until it registers with the highest point of the lower cam groove and follows it while the cage is turning, so that the block gradually falls in following the cam gi'oove, and then when the roller has reached the lowest elevation of this cam-groove, the rock-lever 18 has been caused to move so as to lower the slide 14 and put its cross-groove into alinement with the lowest point of the lower groove, and thereupon the block whose roller is in the groove is transferred to the slide 14 and the 7 block and its rack bodily moved from the lower groove to the upper groove. Meanwhile, the movement of the rack causes the shaft 86 to turn and this will give the proper turning movement to the jack as will presently appear. At the time when one of the slides has been moved upward to elevate'the block and rack, the slide at the opposite side of the cam is being lowered soas to transfer the block on the opposite side from the high point on the upper cam-groove to the high point on the lower cam-groove, and in so doing the rack-bar isoperated to turn the shaft with which it is connected in the reverse direction from the direction of rotation imparted by the rising rack-bar at the other side, as described. By these movements of the rack-bars, the jacks that are opposite the cutter-heads for the time being are so turned that one side of the heel blank in one of the jacks will be presented to the first cutter-head to be cut, and the opposite side of the heel blank in the opposite jack will be presented to the opposite cutter-head to be cut. During the time when these vertical slides 13 and 14 in the stationary cam 8 are active to move'the slide blocks 81 and rack-bars 83 to which they may be temporarily. engaged, the turret remains stationary, and when their motion ceases the turret begins to turn and the cam rolls on the blocks 81 are all caused to follow the grooves in the stationary cam 8 during the time while the turret is rotating, theslides 13 and 14 have passed idly back to their first position, and'receive the roller 82 of the following slides 81 as the turret is again brought to rest and these slides 81 will now be caused to partake of the same motion as was formerly given to the previous pair and so that they will be consecutively operated.

The above .described cycle of motions is such as would take place with the parts arranged as shown in the drawings, but obvi ously the preciseorder of these movements may be changed without departing from the spirit and intent of this invention. For example, if the racks were arranged to operate on the opposite side of the gears with which they mesh, or the turret were revolved in the opposite direction, the above order of motions would be reversed in order to impart the correct motion to the jacks. The end to be attained by this mechanism is, that the jacks shall be given through the medium of the slides 13' and 14, the proper motions to enable the revolving cutter-heads to correctly form the heels, while the turret is stationary and locked, and when this operation is completed the turret is unlocked and rotated to bring the following pair of jacks to the cutter-heads. Durin thls movement of the turret, the cam rol s on the slides 81 working in the slideways 80 on cage 51 are all engaged in the circular cam-grooves 9 and 10 in the stationary cam 8, and this motion of the turret through the medium of Briefly stated, this mechanism permits .the e heel to be turned while the turret is at rest, while all of the jacks are re-positioned while i the turret is in motion.

The slideways 80 are removably applied to cheek-pieces 87 which are attached to the uprights 88 of the cage, so that ready access may be had to themechanism within the cage. 7

The plate 54 as here shown, has arms 89 corresponding in number to the number of jacks employed, and projecting upwardly and outwardly therefrom and bored vertically, and formed as bearings to receive the hubs 90 of the beveled gears 91 which mesh with beveled gears 92 on the shafts 86. These hubs. receive and turn the jackspindles 93 which have the long key-ways '94 (Figs. 1 and 19) which engage keys 95 on the hubs and permit of the longitudinal movement of the spindles in said hubs as well as compel the conjoint turning of the two under the bevel-gear drives. Or any other suitable means for securing rotary motion from the gears while permitting longitudinal movement of the spindles may be employed. The spindles 93 have upper bearings 96 in a tab'le97 arranged above the plate 54 and mounted to'turn on the shaft 4, and with the plate 54: being rigidly fixed to this plate in any suitable way, as by screws, see Fig. 5. vThe table is provided with the circular cam -tracks 98 and 99 arranged con centrically one within the other, and extending about 240 degrees so as to leave a clear openin for the swinging of the jack to proper y present the stock to the cutter- 1 heads which move toward them. These camtracks are interchangeableand designed to be exchanged for others differing in pitch to suit various forms of heels.

The cage and its contained parts, the superposed p1ate54 and the table 97, make up the turret or'turntable herein referred to although I do not limit myself to this con-- struction in detail.

On the spindles 93 are jacks A, B, O, D,

fast to and turning with them, and as thesejacks are identical a descriptionof one will A suffice for all. As will be seen most fully by reference to Fig. 16, the jack-spindle 93 has formed on or applied to it a base-plate 100 whose outer end travels on the cam-track 98,

and this base-plate is made or provided with the pair of parallel ears 101 at or near one end, and a pair of parallel lugs 102 about at its center, and a slot 103 beneath the lugs.

' Pivoted between the ears 101 is a lever 104,

having a depending longitudinally slotted segment 105 which works in the slot 103 and between the lugs 102 and is pinned to the lugs by a pin 106 extending through the slot in the segment. This lever has applied to its outer end a cam-follower or shoe 107 which travels upon the cam-track 99 and is made adjustable up and down upon the lever 1041 by means-of a longitudinally slotted shank 108 and screw 109 or other suitable means, so that the lever-and its superstructure may be arranged at the proper angle or elevation. The lever is provided upon opposite sides with'the transverse guides 110 and 111, and between these guides are the upright, cheek-pieces 112 adjustably secured to the lever as by slots 113 and screws or bolts 114:. On the inner .end of the lever is the work-rest 115 having the end gage 116.

Between the cheek-pieces is arranged the jack-head 117, which is adjustably held in between said cheek-pieces in any suitable way, as by the oblique slots 118 and\ bolts or screws 119. In order to hold the jackhead rigid and guide it in its adjustment in the cheek-pieces these cheek-pieces may be provided with the oblique. lugs 120, Fig. 4;, fitting in the grooves 121 in the head. By this means the jack-head may be adjusted longitudinally and vertically with relation to the jack-lever so as to conform to the style and height of heel-blank to be operated upon. The forward endof the jack-head is recessed at 122, Figs. 3 and 16, and in this recess is arranged vertically the plunger 123,

the lower end of which is slotted at 124 to such-means. The upper portion of the plunger is slotted at 129 and in this slot the clamping-bar 130 is pivoted, the other end of said bar being pivoted to a recoil device 131 arranged verticall in a socket 132 in the rear end of the jac -head 117. This recoil device may be a plunger 133 supported in the socket by a coiled-spring 134, and has a limited;- ,upward movement in the socket. A clampin -lever 135 is pivotally mounted in the jac -head above the clamping-bar near its front, and has the cam end 136 adapted to act upon the clamping-bar to move it and its attached plunger 123 and by its eccentricity to lock these parts in clamping position, the recoil device serving to compensate for variations inheight in the blanks while sufficiently strong to effectively clamp the blank. Beneath the clampingbar is a spring plunger 137 arranged in the jack-head and constantly pressing upwardly against said bar and serving to release the parts when the clamping lever 135 is released. It will be seen by reference to Fig.

maaaeaa 135 is in vertical alinement with the spindle and above it, and supported thrust.

As will be seen, the jack members are well jackso as to get a direct supported laterally and vertically and thus adjustable downward tension for the jack;

and, for convenience, this device is herein referred to as a hold-down.

As will be seen, the jack andits-spindle may be bodily removed from the machine at pleasure,

At the front of the machine and fixed to the spindle or shaft 4 is an arm 141 having in it a side gage 142 and these parts are arranged opposite the point where the 'jack- A is shown at rest, so as to aid the operative in properly placing a blank in the jack.

Two cutter-heads E and F are-mounted at opposite points at the front of the machine, and these cutter-heads being alike, a

description of one will suflice for both. A shaft 143 is mounted to turn in a bracket or frame 144, and is provided with a band pulley'145 to which is applied a band 146 which may extend to any suitable source of power.

The shaft 143 may be rotated by any suitable means, but inasmuch as the cutter-heads must be driven at a greater speed than the turret or turntable, it will be most conven-' ient to drive the shafts from an independent source of power. 'On the shaft 143 is the cutter-head proper 147, preferably provided with interchangeablebladesso as to produce heels of the desired contour. The brackets 144 are provided with slide-blocks 148 which are mounted in the slideways 149 fast on the frame, and these slide blocks are connected by rods 150 with crank arms I51 mounted on shafts 152 borne in brackets 158 on the frameL Interposedbetween the blocks and the crank arms 151 are springs 154. The shafts 152 extend toward the rear of the machine and are provided with crank arms 155 which are connected by links 156 with slides 157 mounted in a guideway 158 in the bar 34, and these slide-blocks 157 are provided with rack-bars 159, one arranged above the other and spaced apart, Fig. 2, and

these rack-bars are engaged by a pinion 160 on the shaft 161, one end of which is mounted in the bracket 61 and the other in the guideway 158. A rotary reciprocating mo-- tion is imparted to the shaft 161 by means of the toothed segment 162 engaging pinion 160 and mounted on the shaft 64 and connected by a link 163 With a rocker-arm 164. mounted to turn on the shaft 32, the lower they end of said rocker-arm having a roller 165 which engages a cam-groove 166 of a cam 167 on the shaft 38, so that as the turret is revolved and the jacks successively brought into position with relation to the cutterheads, these cutter-heads are advanced toward the jacks then opposite them, while are caused to move away from the jacks as the jacks move away from them.

In order to maintain the cutter-heads in proper relation to the jacks during the cutting operations, each jack. spindle is provided with a cam 168 which comes into contact with a buffer 169 fixed to the bracket 144 in which the cutter-head is mounted. This buffer may be made adjustable toward and fromthe cam 168 by means of a set-screw and slot 170 in order to get the correct relationship between the cutter-head and the stock or heel blank. Thesprings 154 provide elastic means to hold the cutter-heads up to their work on the heels being turned, whileat the same time due motion may be allowed to permit the buffers 169 to remain in contact with and follow the contours of cams 168 on the jack spindles in order to produce the .proper form of heel. These cams 168 are interchangeable for difierent forms of heels.

In cutting the blank to shape, the work of cutting begins at the breast of the heel and proceeds along one side to a middle line at the back, in the direction of the grain of the wood, and in order to prevent the formation of a ridge at the back where the two cutterheads end their work, the cutter-heads may be given an auxiliary movement away from the jacks at about the time the centers of the backs of the heels are presented to the cutter-heads, and this may be effected by an adjustable cam arm 171 applied to each of the brackets 1'44 carrying the cutter-heads and extending somewhat beyond and in front of the cutter-head shafts into a position between the cutter-head shafts and the jack spindles, and the hubs 90 of thejack-spindle gearing may be provided -with.roller camarms 1 2 which will come into contact with the cam-arms 171 and thereby serve to slightly back off the cutter-head brackets and so remove the cutter-heads slightly and gradually back from contact or control of the cam 168, Fig. 20, afterthe center of the back of the. heel is reached, and as this occurs at each cutter-head and on both sides of the heel, the cuts do not overlap at this point and no ridge is formed. The jacks are given a motion of about fifteen degrees past the center on'cach side at this point. I

The adjustment of each cam-arm 171 is indicated in Fig. 22, and, as there shown, this arm may be secured to the block 173 by a slot and screw 174 and moved longitudinally by a screwthreaded tail-piece 175 engaged by a fixed nut 176.

The slideways-149 may be secured to the frame in any suitable manner, but it is preferred to secure them to uprights 17?, and these uprights may be secured to the frame in a verticallyadjustable manner by means of the tongue and groove members 178 and height and have both top and bottom bearings for the shafts 143, it is preferred also to provide bottom slideways 183 in addition to the upper slideways 149.

I As already indicated, he machine of this invention is automatic, excepting as to the placing and removing of the work, and these operations are simplified to a very great extent, the end gage on the work rest and the stationary side gage 142 admitting of quick and easy proper adjustment into position of the fresh blank by the operation of the cam lever The side gage is an impossibility in thehnachines that are now in common use, and because of this fact, manufacturers have had to use blanks or stock of larger size and consequently more expensive and wasteful, in order to allow for improper setting in the machine. It will be understood that the operative must rely entirely upon his own judgment and skill. in

setting the blanks or stock without such side gage, but using the side gage in the place indicated enables me to economize in stock and very materially increases the output of the machine. Practically the machine may be run as rapidly as an operative can remove the finished blank and replace it by a fresh blank. The machine is always acting upon two blanks. one of which is being given its first cut on one side, and another its final cut on the other side, while the operative is simultaneously placing anew. block in place of a finished heel. At each quarter turn of the turntable a finished blank is presented to the operative at the front of the machine, the turntable coming to rest while the cutter=heads are operating upon two blanks previously in the machine.

.In other words, the machine may always have four blanks in its jacks, two of which are being operated upon simultaneously by the cutter-heads.

Assuming that the machine is in the position shown in. Figs. 3 and 25, the jack A will be in position to discharge a finished blank and receive a fresh blank. The jack'B is presenting its blank to the cutter-head and meanwhile its gearing 91 and 92 is operating so as to swing the jack in the direction of the arrow a shown in Figs. 3 and 25, and cause it to ride up upon the cam tracks 98 and 99, so that the jack and consequently the blank is being inclined relatively to the cutter-head as the blank is turned from the breast toward the back. When the blank and the jack partshave gained this position, then the cutter-heads begin to recede, the turntable is released from its locking-dog or bolt and begins to turn around in the direction of the arrow 6, so as to carry the jack B away from thecutter-head and to carry the jack A toward the cutter-head. As the turntable moves the necessary quarter turn in order to bring the jack A int-o operative position with relation to the cutter-head E, the jack B has continued its motion in the same direction over its cam tracks and when the turntable again moves a quarter "are advanced a quarter turn, the jack B being moved into a position opposite the side' gage 142 and run down the cam-tracks 98 and 99 so as to present the front of the jack in proper position to receive a fresh blank. Now while the blank in jack B has been under operation by the cutter-head F. the blank in jack Ahas been advanced three- .fourths way around and into position to come into coeperative relation with the cutter-head F, after the jack B has been moved away from the cutter-head to the front of the machine. The course, therefore, 9f a single jack is, first, to receive a fresh blank, next to present it to the first adjacent cutterhead where one side is cut, then to move to a point between the cutter-heads, then presenting the blank to said second cutter-head,

and finally righting itself and presenting" the finished blank to the front of the machine for removal from the machine. So also, if there are four jacks, each one of them is undergoing some operation throug out the entire cycle of movements.

During the time that the cutter-heads are simultaneously operating upon opposite sides of the two blanks presented to them,

and while the jacks containing theseblanks' are advancing upward to the high points of the cam-tracks, the intermediate jacks are substantially at rest, and this because the rollers on the slide-blocks 81 are in the dwell points of the cams 9 and 10. While the heels are being acted upon by the cutterheads and the turntable is stationary, the slides 13 and 14 are being shifted one up and the other down, so that when the turret esasw again turns to advance the jacks a quarter turn, each of theseslides will be in position to permit a transfer of one rack from the higher to the lower cam-groove in the stationary cam 8 and to transfer the other from the lower to the higher, in order to eifect the proper movement of the respective jacks. These positions of the slide-blocks and rack-. bars are shown in detail in Fig. 12.

It will be understood that each jack has two distinct motions, one imparted by the turning of the turntable or jack-carrier, and the other imparted by the rotary reciprocating motion given to the jack spindle. The motion of the turntable or carrier is in one direction and intermittent and proceeds step by step to advance the jack from one station to another, and the rotary reciprocating motion of the jack on the turntable or carrier serves to present first one side and then the other side of the heel to the cutter so as to be cut, in both instances from breast to back, the progressive movement of the jack while juxtaposed to the cutter loccurring when the turntable or carrier i at rest and the reverse movement occurring while the turntable or carrier is in motion. These series of motions are more particularly apparent by an inspection of Figs. 25 and 26, and they are incident to each jack,

and, hence, should a many-jack machine have one or more of its jacks disabled or otherwise put out of commission, the machine may be run with the remaining jack or jacks until the other or others is or are renewed and replaced.

All of the functions of the machine, so far as all of its operations are concerned, are capable of being performed with only one jack on the turntable, and the addition, of other jacks is primarily for the purpose of rendering the machine rapid in production and more satisfactory from a manufacturing and commercial standpoint.

, Referring to the diagram, Fi 26, the lines G represent the positions 0 the jack at the points where its various motions begin and end, and the lines H and H represent the positions of the jack when it is held stationary. These points of arrest of -move ment of the jack might be arranged to' come at other points between I and J or K and L, but the diagram as drawn shows the points of arrest as the same are shown in the other views in the drawings, the point H being the point at which the work is inserted and removed, although this would occur at H if the turntable revolved in the opposite direction. Supposing the turntable be started to rotate with the jack at H, the jack will, during this movement of the turntable, be caused to turn to point L, and when this point is reached by the jack, the turntable will be locked against further movement automatically and the jack motion reversed so that the jack will move up its cam track from M to I, so as to present the work to the cutter and permit the cutter to act upon the blank from the breast portion to the back. When the back of the heel is reached and the jack has arrived at the point I, the turntable is released and begins to continue its rotation in the same direction indicated by the arrow 6, and meanwhile the jack continues to move in the same direction and from I to H, reaching which latter point 7 it remains stationary until theturntable is again rotated, when the jack'again moves in the same direction to J. When this point is reached the turntable is held stationary and the jack is rotated in a reverse direction from N to K, and then the turntable is rotated and the jack moves in the same direction from K to H, when the turntable is again held stationary and the jack stationary, when this cycle is again repeated.

over its tracks to H, where it remains sta-,

tionary while the turret is stationary. While the turret is moving through the next quarter revolution the jack continues to move in the same direction until it arrives at the other end of its track at J. This jack has now arrived opposite the other cutter head and is positioned properly to present its other side thereto, and the turret is again held stationary. Now, while the turret is stationary, the motion of the jack is reversed and said jack is carried up its cam track from N to K, which causes the other side of the heel to be turned. The .turret is now rotated one quarter revolution and the jack continues in this same direction to H, where the finished heel is removed and a new block inserted while both jack and The above cycle is for a four-jack machine, but' with a three-jack machine the jacks would be spaced 120'degrees apart on the turntable, and there would be no stop of the jacks when going from the first cutter to the final cutter, but at each stop of the turntable two jacks will be presenting opposite sides of their blanks to the cutters simultaneously and the third jack will be in position to discharge the previously cut or turned blank and receive a fresh blank. and then this fresh blank will bepresented to the first cutter in sequence as the blank last operated upon by it is presented to the final cutter. machine the stationary cam 8 and turretcage 51 would be suitably designed to cooperate therewith.

It will be understood from the diagram that the work is being cut on one side while the jack is moving from M to I and that the other side of the work is being out While the jack is moving from N to K.

The slides 81 shifting from one cam groove to the other in the stationary cam in opposite directions, causetheir temporarily related jacks to rotate in relatively opposite directions while the turretis at rest and the work operated upon, and the cam grooves through the interposed series of connections cause the jacks to continue to rotate in the same direction while the turret revolves in order that each jack may be properly positioned when arriving at the cutter-head, at which point their direction of rotation is reversed, since .at this time they are connected with means by which the slides are caused to move in the opposite direction to the other cam groove which they follow when the turret rotated until the starting point is again reached,

' at which time the jacks will be properly positioned and again reversed with the beginning of anew cycle. As already indicated, the heelwill be turned always from breast to back, while the turret is at rest, and the jacks will be brou ht to the proper starting position while t e turret is in motion. i

It will thus be seen that the motion of the marily for use in making wooden heels for.

Of course, for a three-jackboots and shoes, the invention is applicable to machines for manufacturing other articles, and also for making heels of other material, and the claims herein arev to,be understood accordingly.

What I claim is 1. In a machine for making heels for boots and shoes, a jack carrier having an intermittent rotary movement in one direction, a pair of rotary cutters or cutter-heads and means to move them toward and from the jack carrier, a jack mounted upon the jack carrier and having an axial rotation on said jack carrier, and means to automatically control the several movements, so that when the machine is running the said jack presents its contained blank to the first of the pair of cutters and rotates it from breast to back as the blank is in cutting relation to said cutter and while the carrier is stationary, the cutter upon completion of its work being moved away from the jack and the carrier resuming its rotation and the jack completing its axial rotationin the same direction, the carrier moving the jack to the second cutter of the pair of cutters and stopping so as to present the opposite or uncut side of the blank to said second cutter, the jack then rotating upon its axis in the opposite direction to permit the cutting of the then uncut side of the blank from breast to back, the jack and cutter thenmoving out of operative relation while the jack continues its rotation in the same direction and the carrier resumes its rotation vfor. a definiteperiod, and the carrier and jack stopping to .permit the discharge of the heel and the insertion of a fresh blank upon which a like series of operations is performed.

2. In a machine for making heels for boots and shoes, a jack carrier having an intermittent rotary movement in one direction, apair of rotary cutters and means to move them toward and from the jack car= rier, a. plurality of jacks mounted upon the jack carrier and having reversible axial rotation thereon, and means toautomatically control the several movements, so that when the machine is running each of said jacks may be supplied inturn with a blank while the carrier and that particular jack are at rest, the several jacks in succession being presented to the first of the pair of cutters, each jack being rotated upon its axis while so presented and while the carrier is at rest so as to effect the cutting of one side of its blank from breast to back, the cutter upon completion of its work being moved away from the jack and the carrier resuming its rotation and the jack completing its axial rotation in the same direction, the carrier moving the jack to the second cutter of the pair of cutters and stopping so as to present the opposite or uncut side of the blank to aeaew said second cutter, the jack then rotating upon its axis in the opposite direction to permit the cutting of the then uncut side of the blank from breast to back, the jack and cutter then moving out of operative relation while the jack continues its rotation in the same direction and the carrier resumes its rotation for a definite period, and the car rier and jack stopping to permit the discharge of the heel and the insertion of a fresh blank upon which a like series of operations is performed, the jacks being simultaneously advanced one interval at a time and each 'of the jacks having similar motions and performing all of the functions described in regular consecutive sequence.

3. The combination with a stationary reaction device, of a jack-carrier, means to move it intermittently through predetermined arcs, a jack carried by said jack-carrier and capable of reversible axial rotation thereon, means by which the jack as it occupies a predetermined relative position on the jack-carrier may be axially rotated in one direction and means by which it may be axially rotated in the oppositedirection as it occupies another predetermined rela tive position on the jack-carrier while the jack-carrier is at rest, and means controlled by the stationary reaction device to efi'ect a further rotation of the jack in the immediately preceding direction for reposiq tioning the jack while the jack-carrier is in motion.

4. The combination With a stationary cam, of a jack-carrien'means to move it intermittently through predetermined arcs, a jack carried by said jack-carrier and capable of rotary reciprocating motion thereon on its axis, and means for axially rotating said jack periodically while the jack-carrier is at rest and for effecting a repositioning of the jack while the jack-carrier is in motion. 5. The combination with an always stationary reaction device, of a jack-carrier, means to move it intermittently through predetermined arcs, a jack carried by said jack-carrier and capable of reversible axial: rotation thereon, means by which the jack, as it occupies a predetermined relative position on the jack-carrier may be axially rotated in the desired direction while the jackcarrier is at rest, and means controlled by the stationary reaction device to effect a repositioning of the jack while the jack-carthe jack-carrier may be axially rotated in positioning one direction and means by which it may be axially rotated in the opposite direction as it occupies another predetermined relative position on the jack-carrier while the jack-carrier is at rest, means controlled by the stationary reaction device to efl'ect a re, or resetting of the jack while the jack-carrier is in motion, and means to cut one side of 'a blank which is held in the jack from one point to another as it isrotated in one direction and then upon reversal of the blank by the reversal of motion of the jack to 'cut the opposite side of the blank beginning at a like point on said opposite side.

In a machine for making heels for boots and shoes, the combination of an intermittently rotating jack-carrier, a jack carried by said jack-carrier, means to impart a rotary reciprocating motion to said jack, a rotary cutter-head, yielding or elastic means to cause thecutter-head to advance toward the jack, and means to withdraw the cutterhead from the jack.

8. In a machine for making heels for boots and shoes, the combination of an intermittently rotating ack-carrier, a jack carried by said jack-carrier,'means to impart a rotary reciprocating motion to said jack, and means to impart a vertical motion to the jack on the carrler.

' 9. In a machine for making heels for boots and shoes, the combination of an intermittently rotating jack-carrier, a jack car.- ried by said jack-carrier and provided with adjustable work-holding elements arranged at an inclination to the carrier, means to impart a rotary reciprocating motion to said jack, means to impart a vertical motion to the jack on the carrier, and an adjustable follower engaging the jack and the lastnamed means to vary the angle of inclination of said work-holding elements on the carrier.

10.'In a machine for making heels for boots and shoes, the combination of an intermittently rotating jack-carrier, a jack carried by said jack-carrier, means to impart a rotary reciprocating motion to said jack, a rotary cutter-head, a bracket or frame in which the cutter-head is mounted, means to adjust the bracket or frame vertically, yielding or elastic means to cause the cutter-head to advance toward the jack, and means to withdraw the cutter-head from the jack.

11. The combination of a rotary turret, a work-holding jack mounted on said turret and adapted to receive axial rotation thereon, means to intermittently rotate the turret in one direction to present the jack at different 125 points in the cycle of movement, means operative when the jack occupies a predetermined relative position'on the turret and during a rest interval of the turret to rotate the jack on its own axis in a given direction we through a predetermined arc, means by which the axial rotation of the jack may be continued in the same direction through a predetermined arc while the turret is rotating to bring the jack to a new predetermined point in the rotation of the turret, means to hold the turret stationary at this point, means operative while the turret is stationary to rotate the jack on its own axis in a reverse direction through a predetermined arc, and means by which the axial rotation of the jack may be continued in this reverse direction through a predetermined arc while the turret is rotating to bring the jacklagain to its original point in the rotation of the turret and the jack to its startin position. a

I2. The combination of a rotary turret, a work holding jack mounted on said turret and adapted 'to receive axial rotation thereon, means to intermittently rotate the turret in one direction to present the jack at differ ent points in the cycle of movement, means "operative when the jack occupies a predetermined relative position on the turret during a rest interval of the turret to rotate the jack on its own axis in a given direction through a predetermined arc, means by which the axial rotation of the ack may be continued in the same direction through a predetermined arc while the turret is rotating to bring the jack to a new predetermined point in the rotation of the turret, means to hold the turret stationary at this point, means operative while the turret is stationary to rotate the jack on its own axis in a reverse direction through a predetermined arc, and means by which the axial rotation of the jack may be continued in this reverse direction through a predetermined arc while the turret is rotating to bring the jack again to its original point in the rotation of the turret and the jack to its starting position, said jack also bein held stationary at a'predetermined point in the cycle of movements of the jack while the turret is held stationary.

13. The combination of a rotary turret, a work-holding jack mounted on said turret and adapted to receive axial rotation thereon, means to intermittently rotate the turret in one direction to present the jack at difierent points in the cycle of movement, means operative when the jack occupies a predetermined relative position on the turret during a rest interval of the turret to rotate the jack on its own axis in a given direction through a predetermined are, means by which the axial rotation of the jack may be continued in the same direction through a predetermined arc while the turret is. rotating to bring the jack to a new predetermined point in the rotation of the turret, means to old the turret stationary at this point, 6 means operative while the turretis stationary to rotate the. jack on its own axis in a reverse direction through a predetermined arc, means by which the axial rotation of the jack may be continued in this reverse direction through a predetermined arc while the turret is rotating to bring the jack again to its original point in the rotation of the turret and the jack to its starting position, said jack also being held stationary at a predetermined point in the cycle of movement of the turret and while the turret is stationary, a pair of cutter-heads adapted to cooperate with the jack, means by which a cutter-head may be advanced into opera tive relation to the jack when the turret moves the jack to the first position where the jack is rotated while the turret is stationary, means by which the rotation of the ack at this point causes the cutter-head to form one side of the heel from breast to back, means to withdraw the cutter-head from the jack, means to advance the other cutter-head to the jack when the jack has reached the second positionwhere the jack is rotated while the turret is stationary, and means whereby the reversed motion of the jack causes the cutter-head to form the other side of the heel also from breast to back, and means to withdraw the cutter-head from the jack, the removal of the work, and the insertion of anew blank being efi'ected while the turret is stationary.

14.'In a machine for making heels for boots and shoes, the combination with a suitable number of rotary work-holding jacks, and cutter-heads tooperate upon the work in the jacks, of means for simultaneously presenting the cutter-heads and jacks in ap- ,position to permit the cutter-heads to act simultaneosly upon opposite sides of blanks in said jacks, and means to move the respective jacks successively so as to present one side of the heel blank to a cutter-head to permit it to be cut from breast to back with the grain and then to present the other side to another cutter-head likewise to be cut from breast to back with the grain, while a fresh blank is bein acted upon by' the first-mentioned cutteread.

15. In a heel turning machine, the combi- 1 nation of a turret, a number of work-carrying jacks arranged on said turret, means to intermittently rotate the turret so as to present the jacks at different points in the cycle of'movements, means operative during the rest intervals of the turret to axially rotate the individual, jacks positively and independently as they occupy predetermined positions, one jack movlng in one direction while another is moving in the opposite direction, and means for repositioning the jacks while the turret is in. motion.

16. The combination of a stationary reaction device, a turret cooperating therewith, including a turntable adapted to rotate mesa-ere intermittently through predetermined arcs, jacks carried by said turntable and having independent and reversible axial rotation thereon, mechanism carried in part by the turret by which the'jacks as they occupy predetermined relative positions on the turntable may be axially and oppositely rotated while the turret is at rest, .and means by which the jack turning by the turret may. be controlled by the stationary reaction device to eflect the repositioning of the jacks while the turret is in motion.

17. The combination, of a jack-carrier, means to move it intermittently through predetermined arcs, a plurality of work holding jacks carried by said jack carrier and capable of reversible axial rotation thereon, means by which the individual jacks consecutively are given predetermined relative positions on the jack carrier and then axially rotated while the jack carrier is at rest, means to efi'ect the consecutive repositioning of the jacks While the jack carrier is in motion, and means by which the jacks as they consecutively arrive at a predetermined relative position on the jack carrier may be held stationary while the jack-carrier is stationary to permit the removal of the work and the substitution of a new blank whereby to produce a finished product at each movement of the jack car- :rier after all of the jacks are supplied with blanks.

18. The combination with a stationary cam, of a jack-carrier, means to move it intermittently through predetermined arcs, a jack carried by said jack-carrier and capable of rotary reciprocating motion thereon on its axis, and means for axially rotating said jack periodically first in one direction and then in the opposite direction, while the jack-carrier is at rest and for effecting repositioning of the jack while the jackcarrier is in motion.

19. The combination with a stationary reaction devifce, of a jack-carrier, means to move it intermittently through predetermined arcs. jacks carried by said jack-carrier and capable of reversible axial rotation thereon,means by which each individualjack as it occupies predetermined relative positions on the jack-carrier may be axially rotated first in one direction and then in the opposite direction while the jack-carrier is at rest, and means controlled by the stationary reaction device to effect repositioning of the jacks while the jack-carrier is in motion.

20. The combination of a jack-carrier,

means to move it intermittently through predetermined arcs, a jack carried by said jack-carrier and capable of reversible axial rotation thereon, means by which the jack as it occupies predetermined positions on the jack-carrier may be axially rotated first in mechanism carriedtlve positions on the turntable may 1t is rotated in one direction and then upon reversal of the blank by the reversal of motion of the jack to cut the opposite side of the blank beginning at a like point on said opposite side.

' In a machine vfor making heels for boots and shoes, the combination of an intermittently rotating jackcarrier, a jack carried by said jack-carrier, means to impart a rotary reciprocating motion to'said jack, rotary cutter-heads;,,yielding or elastic means to cause the cutter-heads to advance toward the jack, and means to Withdraw the cutter-heads from the jack.

22. In a machine for making heels for boots and shoes, the combination of an intermittently rotating jack-carrier, a jack carried by said jack-carrier, means to impart a rotary reciprocating motion to said jack, rotary cutter-heads, a bracket or frame in which each cutter-head is mounted, independent means to adjust the brackets or frames vertically, yielding :or elastic means to cause the cutter-heads to advance toward the jack, and means to withdraw the cutterheads from the jack.

23. The combination of a turret, including a turntable adapted to rotate intermittently through predetermined arcs, jacks carried by said turntable and having independent and reversible axial rotation thereon, mechanism carried in part by the turret by which the jacks as they occupy predetermined relabe axially and oppositely rotated while-the turrot is at rest, and means by which the jack turning mechanism carried by the turret may be caused to effect the further rotation of the jacks in the immediately preceding direction of their rotation while the turret is in motion for the purpose of repositioning them.

24. In a heel turning machine, the combination of a turret, a series of work-carrying jacks arranged on said turret, means to intermittently rotate the turret so as to present the jacks .at different points in the cycle of movement, means operative during the rest intervals of the turret to rotate the individual jacks positively and independently when opposite the aftermentioned cutter-heads and to turn one of them to the right and another to the left while the turret is at rest and thereafter to continue such turning While the turret is in motion, and a pair of independent cutter-heads for successively operating on opposite sides of the Work in the jacks from breast to back.

25. In a heel turning machine, the combination of a'turret, a series of Work-carrying jacks arranged on said turret, means to intermittently rotate the turret in one direction so as to present the jacks at diflerent points in the cycle of movement, means to temporarily hold said turret with the jacks at such points, means operative during the rest intervals of the turret to independently and oppositely'rotate those jacks which for the time being are presenting the work to be cut to the aftermentioned cutter-heads, and independent cutter-heads for simultaneously operating on opposite sides of independent pieces of work carried by said jacks.

26. In a heel turning machine, the combination of a turret, a series of Work-carrying jacks arranged on said turret, means to intermittently rotate the turret so as to present the jacks at different points in the cycle of movement, means to temporarily hold said turret with the jacks at such points, means operative during the rest intervals of the turret to independently and oppositely rotate those jacks which are opposite theaftermentioned cutter-heads while the work is being cut, independent cutterheads for simultaneously operating on opposite sides of separate pieces of work carried by said jacks and by them turned so as to present the work for cutting from breast to back, and means to adjust the jacks with relation to the cutter-heads.

27 In a machine for making wooden heels for boots and shoes. the combination of a series of rotary. jacks, a pair of cutter-heads, means for simultaneously presenting the cutter-heads in apposition to juxtaposed jacks for acting upon opposite sides of blanks in said jacks, means to move the respective jacks so as to present one side of the heel blank to one cutter-head to permit it to be cut frombreast to back with the grain and then turn the blank to present the other side to the other cutter-head likewise to be cut with the grain from breast to back, and a cast-ofi mechanism part of which is fast to and moves with the mechanism of the cutterheads and the other part of which is fast to and turns with the mechanism of the jacks and operates to move the cutter-head away from the blank as the back of the blank is presented.

28. In a machine for making wooden heels for boots and shoes, the combination of an intermittently rotating turret, a series of rotary jacks carried by said turret, a pair of cutter-heads, means for simultaneously presenting the cutter-heads in apposition to two jacks for acting upon opposite sides of blanks in said jacks, and means to move the respective jacks so as to present one side of a blank in a jack to one cutter-head and cause said jack to turn the blank from breast to back and then continue its motion in the same direction while the turret is rotating to carry the said jack toward the second cutter-head and thereby present the opposite side of the blank to the other cutter-head and when so presented to turn the last-mentioned side of the blank relative to the second cutter-head to cause it to be cut from breast to back.

29. In a heel turning machine, the combination of a turret, a series of heel blank carrying jacks arranged on said turret, means to intermittently rotate the turret in one direction so aS to present the jacks at different points in the cycle of movement, means to temporarily hold said turret with the jacks at such points, means operative during the rest lntervals'of the turret to independently rotate those jacks which for the time being are in apposition to the afterm'entioned cutter-heads in relatively opposite directions on their own axes while the work is being cut, and independent cutterheads also revolving in relatively opposite directions for successively operating on opposite sides of the heel blank from breast to back.

30. In a heel turning machine, the combination of a turret, a series of'heel blank carrying jacks arranged on said turret, means to intermittently rotate the turret in one direction so as to present the jacks at difierent points in the cycle of movement, means to temporarily hold said turret with the jacks at such points, means operative during the rest intervals of the turret to independently rotate those jacks which for the time being are in apposition to the aftermentioned cutter-heads in relatively opposite directions on their own axes while the work is being cut, independent cutter-heads also revolving in relatively opposite directions for successively operating on opposite sides of the heel blank from breast to back, and means to adjust the jacks with relation to the cutter-heads.

31. The combination of. a turret. a series of blank-holding jacks arranged on said turret, means to intermittently rotate the turret to present the j acks'at different points in the cycle of movement, means to tempo rarily hold said turret with 'the jacks at such points, means to independently rotate the several jacks, means to move said jacks longitudinally of their axes, means to inrection so as to on opposite sides of the work pivotally mounted, means to intermittently rotate the turret to present the jackslat dif ferent points in the cycle of mov ment, means to hold the turret with the ja ks at such points temporarily, means to rota e the jacks independently of the turret rotation, means to change the angle of inclination of the jacks relatively to the cutter-heads during the cutting operation, cutter-heads for successively operating on opposite sides of the blanks in those jacks at that time opposite the cutter-heads, and means for rotating said jacks on their own axes in relatively opposite directions while in juxtaposition with the cutter-heads to simultaneously form or turn opposite sides of their respective blanks while the turret is at rest.

33. The combination of a turret, a series of blank-holding jacks arranged on said turret and having spindles on which they are pivotally mounted, means to intermittently rotate the turret to present the jacks at different points in the cycle'of movement, means to hold the turret with the jacks at such points temporarily, means to rotate the jacks independently of the turret rotation, means to move the spindles lengthwise, means to move the jacks on their pivots while their spindles are moving lengthwise, cutter-heads for successively operating on opposite sides of the blanks in the jacks, and means for rotating the jacks on their own axes in relatively opposite directions while in juxtaposition with the cutter-heads to simultaneou ly form or turn opposite sides of their resiective blanks while the turret is at rest.

34:. In a heel turning machine, the combination of a turret, a series of work-carrying jacks arranged on said turret, means to intermittently rotate the turret in one di present the jacks at different points in the cycle of movement, means to temporarily hold said turret with the jacks at such during the rest intervals of the turret to independently and jacks which at the time are opposite the aftermentioned cutter-heads, and independent cutter-heads for successively operating from breast to back.

intermittently rotate the turret in one direction so as to present the jacks at diiierent points in the cycle of movement, means to emporarily hold said turret with the jacks at such points, means operative during the rest intervals of the turret to independently and oppositely rotate those jacks then opposite the aftermentioned cutter-heads, independent cutter-heads for successively operating on opposite sides of the work from points, means operative oppositely rotate thosebreast to back, with relation to the cutter-heads.

In a heel turning machine, the combination of a turret,'a series of work-carrying jacksarranged on said turret, means to intermittently rotate the turret in one direction so as to present the jacks at different points in the cycle of movement, means to temporarily hold said turret with the jacks at such points, during the rest intervals of the turret to independently rotate those jacks then opposite the aftermentioned cutter-heads in relatively opposite directions on their own axes while the work is being cut, and independent cutter-heads also revolving in relatively opposite directions for successively operating on opposite sides of the work from breast to back.

37. In a heel turning machine, the combination of a turret, a series of Work-carrying jacks arranged on said turret, means to intermittently rotate the turret in one direction so as to present the jacks at different points in the cycle of movement, means to temporarily hold said turret with the jacks at such points, means operative during the rest intervals of the turret to independently rotate those jacks at the time opposite the aftermentioned cutter-heads in relatively on their own axes while the work is being cut, independent cutterheads also revolving in relatively opposite directions for successively posite sides of the work from breast to back, and means to adjust the jacks with relation to the cutter-heads.

The combination of a turret, a series of blank-holding jacks arranged on said turret, means to intermittently rotate the turto independently rotate the several jacks, cutter-heads for successively operating on opposite sides of the blanks in the jacks, means for rotating those jacks then opposite the cutter heads on their own axes in relatively opposite directions to simultaneously form or turn opposite sides of their respective blanks while the turret is at rest, and means to collectively and properly re-position the jacks while the turret is in motion.

39. The combination of a turret, a series of blank-holding jacks arranged on said turret, means to intermittently rotate the turret topresent the jacks at difl'erent points in the cycle of movement, means to temporarily hold said turret with the jacks at such points, means to independently rotate the several jacks, a pair of cutter-heads for successively operating on opposite sides of the blanks in the jacks, means for rotating two jacks on their own axes in relatively oppooperating on opand means to adjust the jacks 

